//包含多个基于state的getter计算属性


export default{
	totalCount(state){
		return state.cartFoods.reduce((preTotal,food)=>preTotal+food.count,0)
	},
	totalPrice(state){
		return state.cartFoods.reduce((preTotal,food)=>preTotal+food.count*food.price,0)
	},
	
	positive(state){
		return state.ratings.reduce((preTotal,rating)=>preTotal+(rating.rateType===0?1:0),0)
	}
}
